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Make the disk disappear on Windows after it was ejected 

Make the disk disappear on Windows after it was ejected. The device
need to be re-inserted or reseted to re-appear again.

This doesn't affect Linux where the device can be mounted and unmounted
repeatedly.

Closes https://github.com/hathach/tinyusb/issues/549
This commit is contained in:
Roland Dobai 2020-11-05 15:35:26 +01:00
parent 2274740e48
commit 4c99c5ff5c
1 changed files with 10 additions and 1 deletions
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11
examples/device/cdc_msc/src/msc_disk.c
View File

@ -28,6 +28,8 @@
#if CFG_TUD_MSC
static bool ejected = false;
// Some MCU doesn't have enough 8KB SRAM to store the whole disk
// We will use Flash as read-only disk with board that has
// CFG_EXAMPLE_MSC_READONLY defined
@ -137,7 +139,13 @@ bool tud_msc_test_unit_ready_cb(uint8_t lun)
{
(void) lun;
return true; // RAM disk is always ready
// RAM disk is ready until is not ejected
if (ejected) {
tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3a, 0x00);
return false;
}
return true;
}
// Invoked when received SCSI_CMD_READ_CAPACITY_10 and SCSI_CMD_READ_FORMAT_CAPACITY to determine the disk size
@ -166,6 +174,7 @@ bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, boo
}else
{
// unload disk storage
ejected = true;
}
}